In your car at big supermarket - valuables on back seat as you put shopping away. Someone comes over and asks for directions somewhere - you are being helpful, when someone else suddenly snatches your valuables from the back seat Both run off …

At home

A knock on your door - firendly person apparently with ID badge wants to check electricity meter (even though you’re on remote monitoring, maybe). You let him in - maybe someone else gets in by the back door whilst your attention is focused on the visitor ….

In a public place, bar, etc

Your wallet, mobile phone, keys are visible and available … someone talks to you, friendly like … you look around and your wallet, phone, etc have gone …